Latch



P. RACCIO.

LATCH.

APPLICATION FILED AUG-5| 1919.

Patented Aug. 31, 1920'.

Z I D INVENTOR,

A TTORNE Y.

entree stares:

rAs UALn rmooro, or ivnwnnvnn,

NECTIGUI, A CORPORATION or CONNECTICUT.

NT i

cennncrricu'r, Ass'IeNoRQnY DIRECT Ann MESNE ASSIGNMENTS, TO THERncoLoeK COMPANY, or NEW 'HAVEN, 001v- LATCH.

1,3515%; 7 Specification of Letters Patent. Patented Aug. 3.1, 192d.

* Application filed August 5, 1919, serial No, 315,472.

To all whom it may concern: 7 7 3. Be it known that I, PASQUALE BAooIo,citizen of the United States of America,

and resident of NewHaven, in the county of New Haven and State ofConnecticut,

have invented certain new and useful I m-- provements in Latches, ofwhich the .ffol

lowing is a specification.

This invention relates to latches, and particularly to those for use ondoors of automobiles, although it is also of, utility in .the latch casng having an escutcheonplate 1 connection with other doors;

The latches should, of course, be, made right and left, for doors ondifferent sides of an automobile, but I,w 1ll descrlloe a single form,of latch and thoseskilled in the art will understand the changesnecessary to make it adaptable foruse on the, opposite side of anautomobile An object of this invention is to produce novel means wherebya latch 'is held retracted when a door is open, and whereby the saidlatch is released upon closingof a door so that the latch may projectand engage an escutcheon to hold the door closed. The latch operateswithout the application of force, and the door need not be slammed toinsure action of the latch.

A still further object of this invention is toprovide a novel latchreleasing device which coacts with a member so designed as to beactuated by. the movement oi the latch.

A further object of this invention is to produce a latch which may beoperated in an independent manner by a handle or lever projected abovethe latch, the said invention also includingmeans for retracting tnehandle and means for urging the latch outward. V r

With the foregoing and other objects m view, the of construction and inthe arrangement and combination of parts to be hereinafter more fullyset forth and claimed.

In describing the invention in detail, ref erence will be had to theaccompanying drawings forming part of this specification wherein likecharacters denote correspondinvention consists in the, details 7'pendently.

which Figure l'illustrates a view in elevation of the mechanism; of thelatch 2' illustrates an edge view thereof. 7 Fig. 3 illustrates asectional view thereof,

, Figfl illustrates detail. view of the latch. Fig. 5 illustrates topplan view of the latch holding the .loolt.- I

Fig. 6 is an edge view of the bolt'cam. In these drawings 10 denotes, aside -of 11, with an aperture 12 through whichfthe latchbolt 13projects.- The said bolt has a recess 1 and an elongatedaperture' 15,

in which latter a stud 16 of a cam 17 pro:

j ects, the end of the cam lying. in the recess 1 L of the bolt. Thebolt is further pro V vided with a recess; 16 inits side, which has ashoulder 17 at o11e;fend,-and the shoulder may be engaged by anoperating lever 18 projecting through the top of the casing,

the said lever being pivoted on'the stud 18 carried bythe casing.Anti-friction rollers 19 engage the. upper and lower the bolt andconstitute guidesby-which the said bolt is held in proper position.

r A spring'20 has one end anchored to a surfaces of stud 21, and thesaid spring bears-against the lever so that the action of the spring[tends to force the lever'in aodirection to The V move the lever towardthe stop 20. spring 22 has an end bearing against the end of the boltand the opposite end of the said spring isanchored to the stud 23. The

action ofthe spring 22 is .to urge thebolt outwardly appear); aperture24 for the "reception of a spindle,

rotated, and when this means is supplied for actuating the rollback,handles may be applied'to the spindle and the door lock may be actuatedin this manner,

partially .the lever in suchv case being omitted, al- ,though both latchoperating means may be when released (as will presently The rollback 17may have an' by which the'r ollbackmay be oscillated or presentand theymay be operated inde- Therollback has a shoulder 25 engageable by atrigger26, and the trigger engages the lever and operates the leverunder certaln conditions or is operated by the lever under tion to thecasing and an end of the bolt is; adapted to project through an aperture28 of the casing; The bolt terminates in a beveled or camming end 29,which projeotion is adapted to engage a camming lug 30 on the keeperplate 31, and the keeper plate is secured in a suitable manner to thedoor frame. The keeper plate has a latch gu de 32, which consists in aninwardly extending flange at the side of an aperture 33 in said keeperplate. Thebolt 27 hasa slot 27 to receive a guide 27 and a spring 27lies in the slot between the stop and the end 27 of the bolt and pressessaid bolt outwardly.

The operation of the device will, it is thought, be understood from theforegoing description, but itmay be proper to add that when the latch isretracted and the door is opened, the trigger is forced by the spring 27into engagemeent with the shoulder 25 and the latch is held retractedduring the time the door is open. This is desirable, as itremoves anyprojecting device on the door which might COHlG'lll contact withclothing. Vhen the door is closed the trigger bolt is operated by reasonof this engagementjwith the cam lug 30 and the trigger releases theshoulder 25, permitting the springs to reset the bolt in lockedposition, and this relation of parts will be maintained until the dooris again opened.

I claim:

1. In a latch, a casingg aboltslidable therein, means for urging thebolt outwardly, a rollback having a shoulder, means for operativelyconnecting the rollback and latch whereby they move in unison, a triggerbolt slidable in the'casing and projecting therefrom, means for holdingthe trigger bolt projected, means for retractingthe trigger bolt, atrigger carried by the trigger bolt and adapted to engage the shoulderof the rollback when the bolt is retracted, and means for retracting thebolt. I

2. In a latch, a casing, a bolt slidable therein and adapted to projecttherefrom, a rollback mounted in the casing and operativelyconnected tothe bolt, said rollback having a shoulder on its outer edge, a latchbolt slidably mounted in the casing and adapted to project therefrom,means for urg mg the trigger bolt outwardly, a' trigger carried by thesaid bolt and adapted to engage the shoulder of the rollback when the 7bolt is retracted, a memberadapted to engage-the projecting end of thetrigger bolt to force it inwardly to cause a disengagement of thelatch-and the rollback, a lever pivotally connected to the casing andextending past the bolt in engagement therewith to operate said bolt,means for urging the bolt outwardly, and means for pressing the leverfor swinging it on its pivot when the bolt is released. v

. 'PASQUALE RACCIO

